Multiple-compartment tank



June 11,, 1929. EB. 'STALEY MULTIPLE COMPARTMENT TANK Filed Jan. 18,1927 2 Sheets-Sheet gnwntoc Ear? B. Sialey June 11, 1929. E a, STALEY1,716,907

MULTIPLE COMPARTMENT TANK Filed Jan. 18, 1927 2 Sheets-Sheet Earl B.Sialey V Gite-cum Patented June 11, 1929.

UNITED STATES EARL Bl STALEY, or SEATTLE, WASHINGTON.

MULTIPL QMPARTMEN 'TANK.

Application filed January 18, 1927. Serial No. 161,762.

My invention relates to multiple compartment tanks and the method ofmaking the same.

The object of my invention is to provide such a tank and to constructthe same in a manner which makes a strong construction and one which issimple andeasily made, whereby its cost may be kept low.

' The invention resides chiefly in the manner of placing and securingthe intermediate partitions, that is, thepartitions which lie betweenadjacent compartments, and still more particularly to such partitions asare extended below the tank outline to serve as bolsters or supportingwebs.

The construction of a tank in which my invention has been incorporatedhas been shown in the accompanying drawings, and the constructionthereof will be described in the following specification; the novelfeatures and those upon which I desire a patent will then be defined bythe claims.

Figure 1 is a longitudinal vertical section through a tank made inaccordance with my invention Figure 2 is a transverse section of thesame tank taken adjacent to and looking toward an intermediate partitionof the type to which my invention particularly applies;

Figure 3 shows in perspective a tank shell at that point in itsconstruction, in which it has been prepared for the reception of thepartition. the. partition ready for insertion being also shown.

The tank, as shown'in Figure 1, has an outer shell 1, heads 2 and 20,and transverse partitions 3 and 1. The contour of the tank in transversesection is shown as being elliptical, but may be any other suitableshape without affecting my invention.

lVith tanks of this. type, when mounted upon trucks, it has becomecommon to extend certain of the transverse webs, or heads, well belowtheshell to function as bolsters or supporting webs. The outline o'fsuch aweb is shown in Figure 2, in which the area 10 represents the part of apartition plate which is outside of and below the tank shell. The

mg inside the shell, as no part of it is withend heads 2 and 530 arealso shown ashaving out the shell or serves'as a carrying bolster. Inmaking the tank shell 1, I prefer to make this of the full length of thetank, or at least of a length which extends'the full distance betweenthe heads 2 and 20. To insert the partition 4, I cut with a torch a slot10 through the shell, extending entirely about the lower halt of itscircumference. This slot is of a width to properly receive thepartition. Such partition is then inserted in place by passing throughthe slot and welded in place. The upper half of the weld is made fromwithin the tank shell, and the lower half from without the shell.

This method of inserting the intermediate plates leaves the upper halfof the tank shells intact and extending as a single sheet from end toend. It is believed that this makes a somewhat stronger structure thaneven a good welded job.

To further stifi'en and strengthen the tank, I incorporate two tubes 5,one at each side, and extending through the bolsters 40, to which theyaresecured by welding, so as to be an integral structural part of thejob. These may also be used to store deli ery hose an d like objects.

lVhat I claim as my invention is:

1. A tank comprising a shell having a transverse slot cut therein at alocation between its ends, said slot extending over substantially thelower half of its circumference. and a partition inserted through saidslot and welded to the shell throughout its circumferential extent tothereby close said slot.

2. The method of placing partitions in tanks which consists in cutting acircumferential slot at a'location where the partition is desired, saidslot having a circumferential extent suflicient to permit insertion ofthe partition from without; inserting the partition through said slotand welding it to the tank shell to thereby make a tight joint.

A tank comprising a shell, heads which extend below the tank to formbolsters,'a transverse slot cut in said shell at a location between itsends, said slot extending over sub stantially the lower half of itscircumference, and an intermediate partition which passes through saidslot, said partition having an integral portion forming a similarbolster, said partition being welded to the tank wall throughout itscircumference.

4. A tank comprising a shell integral from end to end, and a transversepartition secured luE shell.

5. A tank comprising a shell integral from I end to end, heads securedthereto'at 'its ends, and having lntegral downward extensions formingbolsters, and a transverse partition secured in said shell intermediateits ends,

and having an integral bdlster projecting through and below the underside of said 6. A tank comprising a shell integral from end to end,heads secured thereto at its ends,

andhaving integral downward extensions forming bolsters, and atransverse partition secured in said shell intermediate its ends, andhaving an mtegral bolster pro ecting through and below the under side ofsaid shell, and longitudinal stiffening means integrally joined to theseveral bolsters. r 7. A tank comprising a shell integral from endtoend, heads secured thereto at its ends, and having integral downwardextensions forming bolsters, and a transverse partition secured in saidshell intermediate its ends, and havin an integral bolster projectingthrough and below the under side of said shell, and'longitu-dinalstilfening tubes extending through the intermediate bolster, and securedin the several bolsters.

-Signed at Seattle, King Count Washing ton, thisBOth day of December,1926.

EARL B. STALEY.

